Mark Roberts has signed with CAA. Roberts is co-executive producer on CBS' "Two and a Half Men" and an executive consultant on "The Big Bang Theory." His attorney is Shep Rosenman. … Evan Ross ("Pride") has signed with ICM. Ross, who earned an NAACP Image Award nomination for his role in HBO Films' "Life Support," is wrapping the indie "Driving Lessons." Upcoming films include "Greta," "Black Water Transit" and "Linewatch." Ross also is repped by manager Adam Griffin at Kritzer/Levine/Wilkins and the law firm Ziffren, Brittenham. … Redman has signed with Rain Management Group for representation as an actor, writer and director. Redman, who co-starred in and produced Fox's "Method & Red," most recently appeared in MTV's "Celebrity Rap Superstar." … Hosea Chanchez, who co-stars on the CW's "The Game," has signed with APA and Rigberg Entertainment Group. … Also signing with Rigberg is John White, who appeared in the two most recent "American Pie" sequels. He continues to be repped in Canada by Mary Swinton of 3SG Talent. … Christopher McDonald, who is onscreen in the feature film "Superhero Movie," has signed with Gersh. The actor, who recently finished shooting the indie film "My Sexiest Year," is managed by Danny Sussman at Brillstein. … S. Epatha Merkerson has signed with Innovative Artists for commercial and voice-over representation. Merkerson, best known for NBC's "Law & Order," recently finished production on "The Six Wives of Henry Lefay." She is managed by Craig Dorfman. … Malik Yoba and Cheyenne Jackson also have signed with Innovative Artists. Yoba, who was in "Tyler Perry's Why Did I Get Married?" continues to be managed by Kieran Maguire at Artistry. Jackson, whose credits include Broadway's "Xanadu" and the film "United 93," also is with manager Courtney Kivowitz at Bender Spink and attorney Harris Hartman. … Writer Robert Munic and the writing teams of Matt Federman & Steve Scaia and Matt Allen & Caleb Wilson have signed with Endeavor. Munic wrote the pilot for "The Cleaner," which has been picked up to series at A&E. Federman and Scaia wrote for CBS' "Jericho" and have been hired to write for George Lucas' untitled "Star Wars" episodic series. Allen and Wilson wrote the upcoming "Four Christmases." … Producer Wayne Carmona (HBO's "Entourage") has signed with Paradigm. … Director Chris Bell has signed with Lenny Bekerman at Anonymous Content. His film "Bigger, Stronger, Faster," which debuted at Sundance, will be released in May. … Writer-director Mike Gunther has signed with Insomnia Media Group for management representation. Gunther wrote, directed and produced "Inside the Action," a series of specials for MTV, and recently completed his first feature, "6th and Santa Fe." … Canadian-born director Matthiew Klinck has signed with Grant Turck of Velocity Management; Steve Glick will serve as Klinck's agent in all areas. Klinck is directing the comedy "Hank and Mike" and is in post on two docus: "Tagayet" and "Tuning In: Spirit Channelers in America." … David Dean Portelli has joined Precision as a talent manager. His clients include Brit Morgan (ABC Family's "The Middleman") and Cassie Steele (the N's "Degrassi: The Next Generation"). He began his career at UTA. … Agent Karen Forman, who was with APA for three years, has joined Domain, bringing clients Scott Grimes ("ER"), Roma Maffia ("Nip/Tuck"), Matt Letscher ("Eli Stone"), Kyle Howard ("My Boys"), Reno Wilson ("More Things Change"), Beth Littleford ("The Daily Show"), Rena Sofer ("Heroes") and Charlotte Ross ("NYPD Blue"). … Zac Simmons has been promoted to agent in the television literary department at Kaplan Stahler Gumer Braun. Simmons most recently worked as the TV lit coordinator and for partner Bob Gumer.